Use this for ordering updates to single-user licenses for RATS for UNIX/Linux or for updating an older RATS license for Windows or Mac to UNIX/Linux. An update is $150 from any older UNIX/Linux RATS license to the current version of the same product level: "Standard" Linux executable, "Standard" with source, or "Pro" (which includes both executables and source). Upgrading to a higher level is an added $100 to go to "Standard" with source (thus $250 for the update and upgrade) and an added $150 (making a total of $300) to go to the "Pro".

For purposes of updates, an older Windows or Mac "Standard" license is equivalent to a "Standard" Linux executable, and an older Windows or Mac "Pro" license is equivalent to a "Pro" UNIX/Linux license. Thus, it's $150 to take an older "Standard" Windows or Mac to the current "Standard" Linux executable, or an older "Pro" Windows or Mac to the current "Pro" UNIX/Linux, or $300 to take an older "Standard" to the current "Pro".